baber/WOPTO huggingface dataset:
Patent CA-2125431-C (CA)
Title: Layered photoreceptor structures with overcoatings containing a triphenyl methane
Inventor: CARMICHAEL KATHLEEN M
IPC: G03G5/043
Filed: 1994-06-08
Granted: 1997-12-02
Abstract: An electrophotographic imaging member including a substrate, a charge generating layer, a charge transport layer including charge transporting molecules dispersed in a first polymer binder, and an overcoat layer including a triphenyl methane molecule dispersed in a second polymer binder, the second polymer binder being soluble in a solvent in which the first polymer binder is insoluble and the charge transport layer being substantialy free of any triphenyl methane molecules. The overcoat layer may also contain a charge transport molecule. The device may also include any suitable optional charge blocking, adhesive and other sub layers. This electrophotographic imaging member is fabricated by forming on a charge generating layer a first coating comprising charge transporting molecules dispersed in a solution of a first polymer binder dissolved in a first solvent, drying the coating to remove the solvent to form a substantially dry charge transport layer, forming on the charge transport layer a second coating comprising triphenyl methane molecules and charge transporting molecules dispersed in a solution of a second polymer binder dissolved in a second solvent, the first polymer binder being insoluble in the second solvent and the charge transport layer being substantialy free of any triphenyl methane molecules, and drying the second coating to remove the second solvent to form a substantially dry overcoat layer. This electrophotographic imaging member may be utilized in an electrophotographic imaging process.
Patent CA-2125609-C (CA)
Title: Undulating massager unit
Inventor: RENE PIERRE
IPC: A61H15/00
Filed: 1994-06-10
Granted: 1995-12-26
Abstract: A massaging apparatus providing a plurality of movable massage members movable on an eccentric cam to provide a wave-like movement.   The massage members are carried on a movable carriage, the latter being movably mounted on a frame.   The carriage is selectively movable along the frame and further is movable in elevation relative to the frame.   The apparatus provides a plurality of directions of motion to provide an enhanced massaging effect.
Patent CA-2126826-C (CA)
Title: Apparatus for mixing and detecting on-line homogeneity
Inventor: ALDRIDGE PAUL K
IPC: B01F29/60
Filed: 1994-06-27
Granted: 1999-02-23
Abstract: This invention relates to an apparatus for mixing compositions of matter into a homogeneous mixture and detecting on-line the homogeneity and potency of the mixture, and a method for using the same. More particularly, this invention relates to an apparatus for mixing the components of a pharmaceutical composition into a homogeneous mixture and detecting on-line the homogeneity and potency of said pharmaceutical composition.
Patent CA-2137385-C (CA)
Title: Switching arrangement for wireless terminals connected to a switch via a digital protocol channel
Inventor: GRIFFITH GARY LEN
IPC: H04Q11/04
Filed: 1994-12-06
Granted: 2000-01-25
Abstract: A digital port comprising a passive bus and, at least, the registration and call transfer features associated with a switch to provide cellular wireless capability. The passive bus allows a base station to be connected to the channel and thereby interface a plurality of wireless terminals to the switch. While only some of the wireless terminals in the neighborhood of a base station can be active concurrently (as is the case in all wireless systems) by way of a digital communication channel that is included in the passive bus, the switch can register and, hence, keep track of, a larger number of wireless terminals that are present in the base station's neighborhood. The passive bus also includes at least one circuit switched channel to allow communication with one or more wired or wireless terminals.
Patent CA-2138327-C (CA)
Inventor: HAFFNER WILLIAM B
IPC: D04H13/00
Filed: 1994-12-16
Granted: 2005-09-06
Abstract: The present invention provides a composite elastic necked-bonded material including at least one necked material joined to at least one elastic sheet. The composite elastic necked-bonded material is stretchable in a direction generally parallel to the direction of constriction or necking of the necked material. Also disclosed is a method of producing a composite elastic necked-bonded material by extruding a film of substantially molten elastomer through a die tip; depositing the extruded elastomeric film onto a tensioned, necked material within from about 0.1 to about 1 second of exiting the die tip to form a multilayer material; and then immediately applying pressure to the multilayer material to bond the tensioned, necked material to the elastomeric film.
Patent CA-2143463-C (CA)
Inventor: MARTIN ANDRE
IPC: B61L23/00
Filed: 1995-02-27
Granted: 2004-05-18
Abstract: The communication link includes antennae mounted at adjacent ends of adjacent cars whereby electronic communications between the cars are effected by free space radio frequency coupling.      The antennae are mounted in housings, which include radiation shields, and the housings are mounted on the coupling means for physically coupling the cars together whereby the housings, and therefore the antennas, are maintained in fixed relationship to each other.
Patent CA-2146483-C (CA)
Inventor: BURNS RAYMOND W
IPC: E21B10/02
Filed: 1995-04-06
Granted: 1997-12-02
Abstract: In a rotary earth drill in which sockets are welded to and spaced around a head and drill bits are removably mounted in the sockets, the sockets having a surface exposed to abrasion when the drill is rotated in the earth, a shield in the form of a shroud or jacket is provided, removably mounted on the socket, and extending around the otherwise exposed surface of the socket to protect the socket surface from abrasion.  When the shield itself becomes worn, it can easily be removed, in much the way in which the bits are removed, and replaced.  In order to accommodate the weld by which the socket is secured to the drill head, the shield is provided with a slot, open at at least one end.  The slot is wide enough to permit side edges defining the slot to straddle the weld.
Patent CA-2150011-C (CA)
Title: Apparatus for cleaning objects in movement
Inventor: SJOBERG STAFFAN
IPC: B08B5/04
Filed: 1993-11-24
Granted: 2004-05-25
Abstract: Cleaning apparatus for an object (6) with a moving surface (2), such as a roll, is described having a nozzle head (4) with a suction nozzle (26) and a jet nozzle (24) located therein to emit a liquid jet towards the roll, a subpressure being maintained in the chamber (32) of the suction nozzle in order to evacuate liquid and released impurities with the aid of air flowing in through a gap (34) between the roll and the orifice edge (29). According to the invention the jet nozzle is arranged spaced from the inside (42) of the suction nozzle (26) and at the centre of the suction nozzle to form a circumferential passage (43) between the inside (42) and the jet nozzle, said passage communicating with an evacuation pipe (12). The nozzle head also includes means (44) for supplying compressed air into the chamber (32) via said gap (34) in order to encounter and carry with it liquid and impurities towards and through said passage in cooperation with the suction effect maintained in the chamber (32) and evacuation pipe (12). The compressed air thus supplied also has a favourable drying effect on the roll treated with liquid.
Patent CA-2152521-C (CA)
Title: Low flux leakage cables and cable terminations for a.c. electrical heating of oil deposits
Inventor: BRIDGES JACK E
IPC: H01B7/04
Filed: 1995-06-23
Granted: 2000-06-20
Abstract: The invention relates to an A.C. electrical heating system for heating a fluid reservoir in the vicinity of a mineral fluid well, utilizing A.C. electrical power in a range of 25 to 1000 HZ.  The well comprises a borehole extending down through an overburden and through a subterranean fluid (oil) reservoir; the well includes an upper electrically conductive casing extending around the  borehole in the overburden, at least one electrically conductive heating electrode located in the reservoir, and an electrically insulating casing between the upper casing and the heating electrode.  The heating system comprises an electrical power cable extending down through the conductive upper casing to the heating electrode to supply electrical power to the heating electrode.  The electrical power cable comprises at least two electrical conductors, isolated from each other, and an armor sheath of magnetic material encompassing the conductors, the conductors being electrically terminated at the heating electrode.  There is a net vertical current of approximately zero in the conductors so that eddy current and skin effect losses in the armor sheath are minimized.
Patent CA-2165340-C (CA)
Inventor: FALLA DANIEL JAMES
IPC: B65D75/00
Filed: 1994-06-14
Granted: 2003-10-14
Abstract: An environmentally friendly polymer film pouch made from a homogeneosly branched substantially linear ethylene interpolymer film structure for the packaging of flowable materials such as milk, is disclosed. A pouch made from a multilayer film structure such as a two-layer or a three-layer coextruded film containing at least one seal layer of a homogeneously branched substantially linear poloyethylene is also disclosed. A process for making a pouch for packaging flowable materials using a homogeneously branched substantially linear ethylene interpolymer film structure is also disclosed.
Patent CA-2166766-C (CA)
Inventor: DROR YOAV BEN
IPC: G06F3/12
Filed: 1994-07-01
Granted: 2000-10-24
Abstract: A page composition method which includes the steps of providing a plurality of uniquely identified sub-pages, comprising half-toned images, in a memory and organizing a group of said half-toned sub-pages to form the make up of a page to be printed, wherein the sub-pages to not overlap.
Patent CA-2169845-C (CA)
Title: Air filtration system
Inventor: JARVIS ALLAN
IPC: F24F8/158
Filed: 1994-08-04
Granted: 2005-04-05
Abstract: A composite gas filtration system fot removal of toxic or harmful agents from a breathable gas supply, wherein a compressor fed pressure swing adsorption unit is placed upstream of an adsorbent carbon filter unit in a gas supply line, characterised in that a plenum chamber is positioned in the gas supply line with one or more inlet orifices supplied by gas treated by the pressure swing adsorption unit, one or more exit orifices leading to the carbon filter unit, and one or more further inlet orifices supplied by gas from upstream of the pressure swing adsorption unit, wherein a means for drawing or propelling breathable gas through the plenum chamber and carbon filter from the further inlet orifices in the event of shut down of the pressure swing adsorption unit and/or compressor is provided. By use of the preferred system of the present invention it is thus possible to operate a high pressure swing adsorption unit in conjunction with an adsorbent carbon filter unit, that not being of high pressure type, whereby in event of the high pressure units failing the system automatically switches to a back-up mode, without the need for electronic components if sprung plates or similar mechanical valve means are used, said back-up mode not requiring redundant units that would be required in prior art systems.
Patent CA-2180415-C (CA)
Inventor: GAUGHAN EDWARD W
IPC: B60T17/22
Filed: 1996-07-03
Granted: 2000-09-19
Abstract: For use with control valves having test ports via which various pressures may be accessed in performing an automatic single car brake test, there is provided a test plate via which such control valves may be conditioned to obtain  faster  charging  of  the  brake  equipment  when performing the brake test with a manual single car tester.          The test plate interconnects the test ports such that the test pressure supplied to the car brake pipe charges the brake equipment in by-pass of the charging choke in the control valve.
Patent CA-2181643-C (CA)
Inventor: AOI TATSUFUMI
IPC: B22D11/115
Filed: 1996-07-19
Granted: 2000-01-25
Abstract: A continuous casting device includes a pair of cooling rolls (1, 2) that rotate in the opposite directions to each other; a pair of side weirs (11) whose inner surface (11a) covers the end surfaces (1a, 2a) of the cooling rolls (1, 2), and whose circular surface (12b) covers the peripheral surfaces (1b, 2b) of the cooling rolls (1, 2) in which at least one of the side weirs (11) is movable in an axial direction of the cooling rolls (1, 2). The continuous casting device also includes electromagnets  for forming a magnetic flux in a direction parallel with a contact surface of the side weirs (11) with the molten metal (4) along the peripheral surfaces (1b, 2b) of the cooling rolls (1, 2) at the portions opposite to the peripheral surfaces (1b, 2b) of the cooling rolls (1, 2) of the side weirs (11).
Patent CA-2185940-C (CA)
Title: Electrostatic coating method and apparatus
Inventor: MINOURA SHUUJI
IPC: B05B12/14
Filed: 1996-09-19
Granted: 2000-07-18
Abstract: An apparatus for electrostatically coating a workpiece has an insulating separator valve mechanism for electrically separating a paint supply passage for supplying an electrically conductive paint to a coating gun, into a paint supply passage to which a high voltage will be applied and a paint supply passage to which no high voltage will be applied. The insulating separator valve mechanism has a first valve body connectable to said paint supply passage through a first on/off valve, and a second valve body connectable to said paint supply passage through a second on/off valve. While the first and second valve bodies, are being connected to each other and the first and second on/off valves, are being closed, a paint trap is cleaned by a cleaning medium, which is discharged into a second dump passage. A process of cleaning the paint trap for a paint color change is efficiently and reliably carried out to reliably remove paint residuals from the paint trap.
Patent CA-2186429-C (CA)
Inventor: PETERSON DAVID ROBERT
IPC: B60R16/02
Filed: 1996-09-25
Granted: 1999-11-23
Abstract: A vehicle door arrangement is provided including inner and outer panels. The inner panel has a through opening, a tubular grommet which is received in the opening and snap-fittingly secured to the inner panel, and a plurality of electrical conductors extending through the grommet. The through opening in the inner panel extends inwardly from a side edge of the inner panel. The inner panel has at least one ear extending transversely into the opening adjacent the side edge. The grommet is resilient and has a groove which extends inwardly from its outer periphery and whose outwardly facing bottom is shaped substantially complementary to the opening. The ear engages the bottom of the groove and deflects the grommet as the latter is transversely inserted into the opening until the grommet is fully received in the opening and the ear is aligned with a deeper portion of the groove whereupon the grommet, due to its inherent resiliency, returns toward its normal free state position and locks behind the ear to lock the grommet to the panel.
Patent CA-2195287-C (CA)
Inventor: FUJIMURA TAKASHI
IPC: C21D9/34
Filed: 1997-01-16
Granted: 2001-01-23
Abstract: It is an object of the invention to provide a solid railway wheel and a method of manufacturing the wheel which satisfies both of wear resistance and heat-crack resistance good for use in a high-speed railway vehicle.      In the wheel of the invention, the chemical composition of a base steel comprises: 0.4% to 0.75%C; 0.4% to 0.95%Si; 0.6% to 1.2%Mn; and less than 0.2%Cr. Especially, the content of Cr is preferably 0.05% to less than 0.2% and more preferably 0.07% to less than 0.15%.  It is characterized in that the wheel has pearlitic structure in a region of at least 50 mm in depth from the tread surface of the wheel.      Since the relatively high Si content and the relatively low Cr content are combined, the base steel has proper hardenability as a steel for a wheel. Therefore, the stable pearlitic structure, in which hardness is high and uniform and structure does not change even when heat is generated by application of the brakes, can be formed in a wide region such as a region from the tread surface to a depth of 50 mm or deeper.      The method of manufacturing the wheel of the invention is characterized by combination of the chemical composition of the base steel and a quenching process to the tread portion of the wheel. That is, when the tread of the wheel made of the steel of the above chemical composition is quenched, for example, the following cooling process is used. An operation to interrupt or weaken a cooling operation is performed at a stage before the temperature of the tread of the wheel drops to a pearlitic transformation start temperature in a continuous cooling transformation curve diagram. Thus, the pearlitic structure can be obtained without causing martensitic or bainitic transformation. The wheel having the pearlitic structure can be stably manufactured with good productivity in a commercial scale.
Patent CA-2197005-C (CA)
Inventor: DURAND JEAN-PIERRE
IPC: E21B37/06
Filed: 1997-02-06
Granted: 2006-05-09
Abstract: L'invention décrit un procédé pour inhiber ou retarder la formation, la croissance et/ou l'agglomération des hydrates au sein d'un fluide comprenant de l'eau et des gaz, par addition d'un copolymère hydrosoluble ne contenant pas d'hétérocycle, mais contenant au moins un groupement sulfonate. Le copolymère est introduit en général à une concentration de 0,05% à 5% en masse par rapport à la teneur en eau du milieu. Le copolymère peut encore être utilisé en mélange avec un alcool (monoalco ol ou polyol). Les proportions sont alors en général de 0,5 à 20% en masse d'alcool par rapport à la teneur en eau, pour 0,05 à 3% en masse de copolymère par rappor t à la teneur en eau du milieu.
Patent CA-2198222-C (CA)
Title: Sequences de nucleotides de genes de palmitoyl-acp thioesterase de canola et de soja; leur emploi dans la regulation de la teneur en acides gras des huiles de soja et de canola
Inventor: HITZ WILLIAM DEAN
IPC: C12N5/10
Filed: 1995-08-25
Granted: 2011-10-25
Abstract: Des séquences nucléotidiques codant une ACP (protéine transporteuse d'acyles) thioestérase spécifique de C16 ont été isolées. Les séquences nucléotidiques de la présente invention sont exprimées dans l'espèce E. Coli et dans des tissus végétaux, et ont été utilisées dans l'inhibition antisens de la thioestérase endogène des plantes et dans la régulation de l'amas de coenzymes A d'acyle en vue de réduire la teneur en acides gras saturés des huiles végétales.
Patent CA-2205038-C (CA)
Inventor: GREGORY KENTON W
IPC: A61F2/06
Filed: 1995-04-04
Granted: 2008-06-17
Abstract: The present invention relates to an elastin-based biomaterial and to a method of using same to effect tissue repair or replacement. The invention further relates to a method of securing the biomaterial to existing tissue.
Patent CA-2207034-C (CA)
Inventor: PIDGEON KENNETH JOHN
IPC: G02B5/23
Filed: 1995-12-18
Granted: 2006-09-19
Abstract: A light-transmissible article formed from a polymeric material, which article includes at least one photochromic dye; and a compatible light absorbing material distributed on or within the article; the combination of photochromic dye and compatible light absorbing material is such that the depth of darkening upon activation of photochromic dye is rendered substantially uniform regardless of variations in length, thickness or local changes of surface shape.
Patent CA-2207259-C (CA)
Inventor: HACKETT JOHN WALTER
IPC: A61F13/15
Filed: 1996-01-05
Granted: 2001-12-18
Abstract: Described herein is a multiple layer absorbent core having a front ear section, a crotch section and a back ear section, wherein the machine direction length of the crotch section equals the combined machine direction  length of the front ear section and the back ear section, the angle and radi i forming the transition from the crotch width to the ear width being equal, t he core being suitable for use in an absorbent article, and a method for manufacturing such multiple layer absorbent core. The method comprises providing a single web (10) of absorbent core material from a roll, in which  the web having parallel straight longitudinal side edges; continuously transporting the web of absorbent core material in the machine direction; continuously cutting (12) the web of absorbent core material longitudinally into web sections having at least one full-pattern strip (14) having a repeating hourglass-shape and first (16) and second (18) side trim pieces ea ch of the side trim pieces having a straight edge defined by one of the paralle l straight longitudinal side edges of the web and an opposite non-linear longitudinal edge having a pattern corresponding to one of the longitudinal edges of the full-pattern strip (14); continuously orienting the side trim pieces relative to the full-pattern strip (14)such that the ear sections and  said crotch section of the side trim pieces are superimposed in registration  with said full-pattern strip (14) to form a continuous multiple layer composite strip (24); and successively cutting the composite strip (24) in t he transverse direction at predetermined intervals to form discrete multiple layer absorbent cores (26).
Patent CA-2208277-C (CA)
Inventor: KOVACIK PAUL J
IPC: B29C48/30
Filed: 1994-01-07
Granted: 2000-05-09
Abstract: A glazed unit having three sheets includes a pair of outer glass sheets secured to outer legs of a spacer having a generally U-shaped cross section.  On the base of the spacer between the outer legs is provided a layer of pliable material having a generally U-shaped cross section and having a desiccant therein.  A third or intermediate glass sheet has its edge portion in the groove formed by the layer of pliable material.  Movement of the third sheet toward an outer glass sheet is limited by the cooperation of the layer of the pliable material and portion of the outer legs of the spacer at the corners of the unit bent inwardly to move the layer of pliable material at the corner toward the unit during fabrication of the unit.          A nozzle for depositing the shaped layer of the pliable material includes a platform having a shaping tip. The shaping tip has converging sides at one end and generally parallel sides at the other end.  The portion of the tip at the first end has a lower elevation than the portion of the tip at the second end.  Holes for moving the pliable material are provided in the platform on each side of the tip and in tips intermediate its ends.  The different elevation and converging end minimizes if not eliminates tailing.          A method is also discussed for making the triple glazed unit using the nozzling to provide the shaped layer of pliable material.  An injector arrangement fills the unit with an insulating gas e.g. Argon.